Research has shown that the three B vitamins in TRI-B® from Carlson can help you maintain your normal blood levels of homocysteine. In each 1-tablet serving of TRI-B, you get 25 mg of vitamin B6 (as pyridoxine HCL), 800 mcg of Folate (folic acid) and 400 mcg of Vitamin B12 (as cyanocobalamin).